1 files changed, 153 insertions, 0 deletions
diff --git a/MediaBrowser.Common/Net/NativeWebSocket.cs b/MediaBrowser.Common/Net/NativeWebSocket.cs
new file mode 100644
index 000000000..d57deca54
--- /dev/null
+++ b/MediaBrowser.Common/Net/NativeWebSocket.cs
@@ -0,0 +1,153 @@
+using MediaBrowser.Common.Logging;
+using MediaBrowser.Common.Serialization;
+using MediaBrowser.Model.Logging;
+using System;
+using System.IO;
+using System.Net.WebSockets;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Common.Net
+{
+    /// <summary>
+    /// Class NativeWebSocket
+    /// </summary>
+    public class NativeWebSocket : IWebSocket
+    {
+        /// <summary>
+        /// The logger
+        /// </summary>
+        private static ILogger Logger = LogManager.GetLogger("NativeWebSocket");
+
+        /// <summary>
+        /// Gets or sets the web socket.
+        /// </summary>
+        /// <value>The web socket.</value>
+        private WebSocket WebSocket { get; set; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="NativeWebSocket" /> class.
+        /// </summary>
+        /// <param name="socket">The socket.</param>
+        /// <exception cref="System.ArgumentNullException">socket</exception>
+        public NativeWebSocket(WebSocket socket)
+        {
+            if (socket == null)
+            {
+                throw new ArgumentNullException("socket");
+            }
+
+            WebSocket = socket;
+
+            Receive();
+        }
+
+        /// <summary>
+        /// Gets or sets the state.
+        /// </summary>
+        /// <value>The state.</value>
+        public WebSocketState State
+        {
+            get { return WebSocket.State; }
+        }
+
+        /// <summary>
+        /// Receives this instance.
+        /// </summary>
+        private async void Receive()
+        {
+            while (true)
+            {
+                byte[] bytes;
+
+                try
+                {
+                    bytes = await ReceiveBytesAsync(CancellationToken.None).ConfigureAwait(false);
+                }
+                catch (WebSocketException ex)
+                {
+                    Logger.ErrorException("Error reveiving web socket message", ex);
+
+                    break;
+                }
+
+                if (OnReceiveDelegate != null)
+                {
+                    using (var memoryStream = new MemoryStream(bytes))
+                    {
+                        try
+                        {
+                            var messageResult = JsonSerializer.DeserializeFromStream<WebSocketMessageInfo>(memoryStream);
+
+                            OnReceiveDelegate(messageResult);
+                        }
+                        catch (Exception ex)
+                        {
+                            Logger.ErrorException("Error processing web socket message", ex);
+                        }
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Receives the async.
+        /// </summary>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>Task{WebSocketMessageInfo}.</returns>
+        /// <exception cref="System.Net.WebSockets.WebSocketException">Connection closed</exception>
+        private async Task<byte[]> ReceiveBytesAsync(CancellationToken cancellationToken)
+        {
+            var bytes = new byte[4096];
+            var buffer = new ArraySegment<byte>(bytes);
+
+            var result = await WebSocket.ReceiveAsync(buffer, cancellationToken).ConfigureAwait(false);
+
+            if (result.CloseStatus.HasValue)
+            {
+                throw new WebSocketException("Connection closed");
+            }
+
+            return buffer.Array;
+        }
+
+        /// <summary>
+        /// Sends the async.
+        /// </summary>
+        /// <param name="bytes">The bytes.</param>
+        /// <param name="type">The type.</param>
+        /// <param name="endOfMessage">if set to <c>true</c> [end of message].</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>Task.</returns>
+        public Task SendAsync(byte[] bytes, WebSocketMessageType type, bool endOfMessage, CancellationToken cancellationToken)
+        {
+            return WebSocket.SendAsync(new ArraySegment<byte>(bytes), type, true, cancellationToken);
+        }
+
+        /// <summary>
+        /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
+        /// </summary>
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+
+        /// <summary>
+        /// Releases unmanaged and - optionally - managed resources.
+        /// </summary>
+        /// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
+        protected virtual void Dispose(bool dispose)
+        {
+            if (dispose)
+            {
+                WebSocket.Dispose();
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the receive action.
+        /// </summary>
+        /// <value>The receive action.</value>
+        public Action<WebSocketMessageInfo> OnReceiveDelegate { get; set; }
+    }
+}